The little boy who got lost decided to remain ________ she was and wait for her mother.
| A．what | B．how |
| C．who | D．where |
—Tom has played a lot of computer games recently.
—Yes，that might ________his failure in the midterm examinations.
| A．account for | B．answer for | C．ask for | D．stand for |
—What are they up to？It’s so noisy.
—Some students________a party.
| A．have had | B．are having | C．had had | D．were having |
When he was a little boy，he ______ on the farm.
| A．used to working | B．used to work |
| C．got used to work | D．was used to work |
— Somebody has left the lab door open.
—Don't look at me.
| A．Dear me | B．Hi, there |
| C．Thank goodness | D．Come on |
_______ the two oceans the Pacific is ______ .
| A．In; the large | B．For; larger | C．Of; larger | D．Of, the larger |